void main() {
  // 加减乘除
  double salary = 10000; // 工资
  double start = 5000;
  double tax = (salary - start) * 0.05; // 税率
  double social = salary * 0.12; // 社保
  double fund = salary * 0.12; // 公积金
  double medicel = salary * 0.05; // 医保
  double other = salary * 0.02; // 养老 失业 生育 工伤
  double meals = 12 * 22; // 餐补
  double car = 10 * 22; // 车补
  double house = 500; // 房补

  print(
      '应发工资：$salary,实际发放工资：${salary - tax - social - fund - medicel - other + meals + car + house}');

  int a = 10;
  int b = 3;
  print(a ~/ b); // 输出：3（因为 10 ÷ 3 = 3.33，取整为 3）
}
